Coltan Traceability in the Democratic Republic of the Congo: Between Governance Imperatives, Technological Challenges, and Geopolitical Tensions. What Solutions for Ethical and Sustainable Mining? RDI [Internet]. 2025 Apr. 7 [cited 2026 Sep. 16];21(3). Available from: https://publicacoesacademicas.uniceub.br/rdi/article/view/9899